Architecture
A system administrator, or sysadmin, is a person who is responsible for the upkeep, configuration, and reliable operation of computer systems; especially multi-user computers, such as servers.
Essentials: Common Firewall Rules and Commands
A firewall is a system designed to prevent unauthorized access to or from a private network. You can...
Install Tinc and VPN Setup on Debian & Ubuntu
Tinc is a Virtual Private Network (VPN) daemon that uses tunnelling and encryption to create a secure...
Initial Server Configuration & Setup on Debian
When you first create a new server, there are a few configuration steps to increase the security and...
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Installing Nginx on Ubuntu 14.04 with Server Caching
Nginx is a free, open-source, high-performance HTTP server and reverse proxy, as well as an IMAP/POP3...